kaxil commented on a change in pull request #11107:
URL: https://github.com/apache/airflow/pull/11107#discussion_r493826828
##########
File path: airflow/providers/ftp/hooks/ftp.py
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@@ -20,7 +20,7 @@
import datetime
import ftplib
import os.path
-from typing import List, Optional
+from typing import List, Optional, Any, Union
Review comment:
```suggestion
from typing import List, Optional, Any
```
we can remove Union once
https://github.com/apache/airflow/pull/11107/files#r493825856 is implemented
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